Master the AG Mechanics CDE 2025 – Rev Up and Rule the Field!

Question: 1 / 400

The camshaft opens and closes the:

breather

intake valve

exhaust valve

both B and C

The camshaft is responsible for controlling the opening and closing of the intake and exhaust valves. The breather is a separate component in the engine that helps regulate air flow. So, options A, B, and C are incorrect because they all refer to individual components, while the camshaft controls both the intake and exhaust valves simultaneously. Option D, on the other hand, correctly states that the camshaft is responsible for opening and closing both the intake and exhaust valves.

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